Yes we just had this discussion about using a Saiga in a different thread. The problem is the bolt face (Saiga shotguns have a 2-part bolt) will not be the correct size. You'd have to machine a new part and then heat treat it. Not sure which would be the better route!

Just a thought; it might be simpler to use Saiga bits instead of making new ones up from scratch.

the problem is there are none avaliable. I have asked and posted wanted adds ect. I build heavy barreld varmit rifles and could use those parts as well. the L1A1 is slightly lowere but it can be made to work see the link in the build your own AK section. the ID is .685